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I'm trying to do something like:
{{- $cassandrafullname := template "cassandra.fullname" . -}}
but I'm getting this error on a dry run:
Error: UPGRADE FAILED: parse error in "cassandra/templates/service.yaml": template: cassandra/templates/service.yaml:1: unexpected <template> in command
The reason why I have this issue is because I am unable to use the template cassandra.fullname within a range, so I'm trying to put the value into a variable and use it in the range instead. So if there's a solution for that, it would also be accepted!
741
In Helm templates, a variable is a named reference to another object. It follows the form $name . Variables are assigned with a special assignment operator: := . We can rewrite the above to use a variable for Release.Name .
The $_ is used to suppress undesired output as "set" returns the new dictionary. The above returns: - name: mongod-none. Any values added to the dictionary will live beyond the call. If you want to avoid polluting an existing dictionary you can force a deep copy with: {{- $d := merge (dict) . -}}
With Helm's helm template command, you can check the output of the chart in fully rendered Kubernetes resource templates. This is a very handy command to check the templates' outputs, especially when you are developing a new chart, making changes to the chart, debugging, and so on.
Helm defines an include function which is identical to the standard template, except that it returns the rendered output instead of outputting it. You should be able to write
{{- $cassandrafullname := include "cassandra.fullname" . -}}
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